Adjustable filler insert for planters



FIG. 1 is a top perspective view of the adjustable filler insert for planters of the present invention;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a side view thereof. 

CLAIM The ornamental design for an adjustable filler insert for planters, as shown and described. 